public async Task TestThatOnlyOneUpdateDomainCanUpdateAtATime()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("superClusterId", "instanceId2", "2");
Assert.False(await otherUpdateSessionManager.TryStartUpdateSession());
}
public async Task TestThatDiffentAppsCanUpdateIndependently()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession("app1"));
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("clusterId1", "instanceId2", "2");
Assert.True(await otherUpdateSessionManager.TryStartUpdateSession("app2"));
}
public async Task TestThatDifferentDeploymentsCanUpdateIndependently()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("superClusterId2", "instanceId2", "2");
Assert.True(await otherUpdateSessionManager.TryStartUpdateSession());
}
public async Task TestThatMultipleInstancesInTheSameUpdateDomainCanUpdateSimultaneously()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("superClusterId", "instanceId2", "1");
Assert.True(await otherUpdateSessionManager.TryStartUpdateSession());
}
public async Task TestThatEndUpdateSessionWorks()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
await _updateSessionManager.EndUpdateSession();
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("superClusterId", "instanceId2", "2");
Assert.True(await otherUpdateSessionManager.TryStartUpdateSession());
}
public async Task TestThatEndUpdateSessionWorks()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession("app1"));
await _updateSessionManager.EndUpdateSession("app1");
IUpdateSessionManager otherUpdateSessionManager = CreateUpdateSessionManager("deploymentId", "instanceId2", "2");
Assert.True(await otherUpdateSessionManager.TryStartUpdateSession("app1"));
}
public async Task <bool> TryStartUpdateSession(string applicationId)
{
int count = 0;
while (count <= _retryCount)
{
if (await _updateSessionManager.TryStartUpdateSession(applicationId))
{
return(true);
}
++count;
if (count <= _retryCount)
{
await Task.Delay(_retryInterval);
}
}
return(false);
}
public async Task <bool> Update(string appId, IEnumerable <SemVersion> versionsToRemove, IEnumerable <SemVersion> versionsToDeploy)
{
if (!versionsToRemove.Any() || !versionsToDeploy.Any())
{
throw new ArgumentException("An update must at least involve an application to remove and an application to deploy");
}
IEnumerable <AppIdentity> applicationsToDeploy = versionsToDeploy.Select(v => new AppIdentity(appId, v));
IEnumerable <AppIdentity> applicationsToRemove = versionsToRemove.Select(v => new AppIdentity(appId, v));
bool failed = false;
try
{
if (!await _updateSessionManager.TryStartUpdateSession(appId))
{
Trace.TraceInformation("Couldn't start update session for app {0}", appId);
return(false);
}
await UnInstallApplications(applicationsToRemove);
await InstallApplications(applicationsToDeploy);
}
catch (AggregateException e)
{
failed = true;
TraceUtils.TraceAllErrors("Failed to update applications", e);
}
catch (Exception e)
{
failed = true;
Trace.TraceError("Failed to update applications", e);
}
await _updateSessionManager.EndUpdateSession(appId);
if (failed)
{
return(false);
}
return(true);
}
public async Task <bool> Update(IEnumerable <AppIdentity> applicationsToRemove, IEnumerable <AppInstallConfig> applicationsToDeploy)
{
if (!applicationsToDeploy.Any() || !applicationsToRemove.Any())
{
throw new ArgumentException("An update must at least involve an application to remove and an application to deploy");
}
string appId = applicationsToDeploy.First().AppIdentity.Id;
bool failed = false;
try
{
if (!await _updateSessionManager.TryStartUpdateSession(appId))
{
Trace.TraceInformation("Couldn't start update session for app {0}", appId);
return(false);
}
await UnInstallApplications(applicationsToRemove);
await InstallApplications(applicationsToDeploy);
}
catch (AggregateException e)
{
failed = true;
TraceUtils.TraceAllErrors("Failed to update applications", e);
}
catch (Exception e)
{
failed = true;
Trace.TraceError("Failed to update applications", e);
}
await _updateSessionManager.EndUpdateSession(appId);
return(!failed);
}
public async Task TestStartUpdateSessionSimple()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
}
public Task <bool> TryStartUpdateSession(string applicationId)
{
return(_retryPolicy.ExecuteAsync(async() => await _updateSessionManager.TryStartUpdateSession(applicationId)));
}
public Task <bool> TryStartUpdateSession()
{
return(_retryPolicy.ExecuteAsync(async() => await _updateSessionManager.TryStartUpdateSession()));
}
public async Task CheckForUpdates()
{
try
{
Trace.TraceInformation("Checking for updates");
IEnumerable <AppDeploymentConfig> applicationDeployments = await _applicationDeploymentDirectory.FetchDeployments();
IEnumerable <AppIdentity> runningApplications = _applicationPool.Applications.Select(app => app.Identity).ToList();
IEnumerable <AppIdentity> applicationsToRemove = FindApplicationsToRemove(runningApplications, applicationDeployments);
IEnumerable <AppDeploymentConfig> applicationsToDeploy = FindApplicationsToDeploy(runningApplications, applicationDeployments);
if (!applicationsToDeploy.Any() && !applicationsToRemove.Any())
{
return;
}
// download applications first
await DownloadApplications(applicationsToDeploy);
var allAppsIds = new HashSet <string>(applicationsToRemove.Select(identity => identity.Id));
allAppsIds.UnionWith(applicationsToDeploy.Select(config => config.AppIdentity.Id));
if (!await _updateSessionManager.TryStartUpdateSession())
{
Trace.TraceInformation("Couldn't start update session");
return;
}
var tasks = new List <Task>();
foreach (string appId in allAppsIds)
{
IEnumerable <AppIdentity> appRemovals = applicationsToRemove.Where(identity => identity.Id.Equals(appId));
IEnumerable <AppDeploymentConfig> appDeployments = applicationsToDeploy.Where(config => config.AppIdentity.Id.Equals(appId));
// if an application has a removal(s) and deployment(s), we consider it an update
if (appRemovals.Any() && appDeployments.Any())
{
tasks.Add(_applicationInstaller.Update(appRemovals, appDeployments));
}
else
{
foreach (AppDeploymentConfig appDeploymentConfig in appDeployments)
{
tasks.Add(_applicationInstaller.Install(appDeploymentConfig));
}
foreach (AppIdentity appRemoval in appRemovals)
{
tasks.Add(_applicationInstaller.UnInstall(appRemoval));
}
}
}
await Task.WhenAll(tasks);
// We will only end the update session if the update was successful. Otherwise, the update session will stay open and will prevent
// the deployment from moving to the next update domain.
await _updateSessionManager.EndUpdateSession();
}
catch (AggregateException e)
{
TraceUtils.TraceAllErrors("Failures occured during updates", e);
}
catch (Exception e)
{
Trace.TraceError("Failed to perform update; Exception: {0}", e);
}
finally
{
await UpdateDeploymentStatus();
}
}